Sn0wbreeze

sn0wbreeze is a utility that can create custom IPSWs to restore to, akin to PwnageTool. It is a GUI of XPwn for Windows written in C#, and is developed by iH8sn0w.

Models Supported

• iPhone 2G
• iPod touch 1G
• iPhone 3G
• iPod touch 2G
• iPhone 3GS
• iPod touch 3G

The iPod touch 2G, iPod touch 3G, and iPhone 3GS need to have the signature checks disabled beforehand by having a pwned iBoot. The iPhone 3G and the iPod touch 2G MB Model has to run iREB before restoring with iTunes to a custom IPSW in DFU Mode. The iPhone 2G, and iPod touch 1G users cannot use sn0wbreeze to pwn 4.x since Apple no longer supports these devices anymore.

Devices with new bootroms

sn0wbreeze is tethered on devices with a new bootrom because the bootrom exploit only allows unsigned code thru USB so it requires the computer to boot the device up.

Versions

sn0wbreeze was first released January 13, 2010 as a beta version. The following versions that are shown here are official, and sorted by compatibility with iOS revisions.

3.1.X

Version	Release date	Changes
Public Beta	January 13, 2010	Initial release Jailbreaks iOS 3.1.2 Only allows you to be able to select simple mode Taken down due to copyright issues with XPwn
1.0	January 16, 2010	Official release of sn0wbreeze
1.1	January 19, 2010	Fixes Cydia problems Fixes problems with NOR on S5L8900 devices Fixes custom packages not being installed
1.2	January 21, 2010	GUI fixes Fixed even more Cydia problems
1.3	January 23, 2010	fixes bug where some Cydia repositories could not be added and downloaded from
1.4	January 26, 2010	Fixed vital bug where deb files may not be added to the right place
1.5	February 5, 2010	Jailbreaks iOS 3.1.3 Removed verbose mode support
1.5.1	February 7, 2010	Removed blacksn0w due to CommCenter issues (fix being worked on)

4.X

Version	Release date	Changes
1.6	June 24, 2010	Jailbreaks iOS 4.0 only. Removed ultrasn0w integration. (Due to MuscleNerd's request citing version management issues. Install it through the "custom packages" feature instead.) Removed "sn0wbreeze App" integration. (Discontinued)
1.7	July 6, 2010	Added support for new bootroms in the form of a tethered jailbreak with iBooty.
1.8 Beta	July 16, 2010	Only for iOS 4.1 beta 1. Doesn't support hacktivation.
2.0	September 22nd, 2010	Added support for "MC model" iPod touch 2G (tethered using usb_control_msg(0xA1, 1) Exploit) Added Support for iPod touch 3G and iPhone 3GS (new bootrom) on iOS 3.1.2 GUI improvements Backwards compatible with 3.1.X
2.0.1	September 22nd, 2010	Fix for Error 37
2.0.2	September 25th, 2010	Fixes for Error 37 and hacktivation.

Problems

• There were some problems with blacksn0w on 3.1.3. These problems were caused because the 5.11.07 baseband requires CommCenter from 3.1.2, and when people would upgrade their firmware they would also upgrade their CommCenter to the version that came with 3.1.3, thus disabling the unlock.

Use of xpwntool

The backend of sn0wbreeze is xpwntool which is used to decrypt the IPSW, patch the required files and then encrypt it back using xpwntool.The tool was broken but it was fixed by iH8sn0w.Some modifications of it has been posted in his github

sn0wbreeze does not use ipsw.exe, an open-source custom IPSW generator created by planetbeing but it does the work done by ipsw.exe manually using xpwntool.

Restoring to a custom IPSW

The security of iDevices normally won't permit custom firmwares. sn0wbreeze and iREB can circumvent this security measure so you can restore to a custom firmware without a hitch.

License

sn0wbreeze is freeware.

Download

Download sn0wbreeze